Ore-reducing apparatus



(No Model.)

N. CLEMENT.

ORE REDUGING-A'PPARATUS. A No. Z91,294.` Patented Jan. 1, 1884.

WM` v' f UNI-ren 'STATE-s PATENT Querce.

` "NELSON CLEMENT, OF OHIOAGO, ILLINOIS.

ORE-REDUCING APPARATUS.

SPECIFICATION forming part of Letters Patent No. 291,294, dated January1, i884. Application filed July 24, 183. (No modeh) T 0 a/ZZ ww'm zit'my concern.'

, Be it-known that I, NnLsoN CLEMENT, a citizen of the United States ofAmerica, residing at Chicago, inthe county of Cook and State ofIllinois, have invented certain new and useful Improvements inOre-Reducing Apparatus, of which the following is a specication,reference being had therein to the accompanying drawings.

My invention relates to certain improvements in ore-reducing apparatus.The obj ects in view are to lessen the wear upon the apparatus, and tomore thoroughly and perfectly reduce the ore.

The invention consistsjn a mill or apparatus for reducing ore byattrition, of the novel construction hereinafter described and claimed.

Reference will be made to the accompanying drawings, which form part -ofthis speciication, and in which* Figure 1 is a vertical section of theapparatus, and Fig. 2 a sectional plan view of same on line x of Fig. 1.

Like letters refer to corresponding parts in both views.

A represents thelnain and stationary casing ofthe apparatus. This casingis of any desired size and is formed of any suitable material. It iscircular in form and provided at the bottom with a circular opening, theobject of which will be explained. Upon its upper face it is formed inthe shape of a cone, B, said cone being provided at its upper end withan opening, through which a shaft, C, is passed, as shown. Shaft C hasbearing at' its lower end in a seat, D, and at its upper end in abracket, D', formed upon the upper end of cone B. Keyed to this shaft atthe point shown is a pulley, E, for impart-ing motion thereto.

Upon the inclined face ofcone B there is formed a funnel-shaped spout,F, which opens into the interior of casing A, and into and through whichthe ore to be reduced is fed. A similar funnel-shaped spout is formedupon the upper face of casing A, and upon the opposite side of cone B tothat occupied by spout F. This spout G also opens into casing A, andthrough it is forcedthe orc when reduced.

Upon the inner edge of the base or bottom b of casing-A there is formeda vertical iiange, c,and extending from said iiange to the 'outer wallof said casing are a series of ribs, d. The base-plate b of easing Aextends a short distance beyond the wall of the same, and forms ahorizontal flange, e, through which are passed bolts f, for securingsaid casing to any suitable support, H, said bolts being held in placeby nuts g.

Keyed to shaft C, by means of screw 7L, is a sleeve or hub, I, uponwhich is cast a coneshaped casing, J, which is hollow and is providedon, its lower side with projections t, which add to its strength. At thepoint j cone J is bent to form the horizontal flange j, and at k is bentat right angle to form vertical iiange Z, said last-named iiange beingalso bent nearly at a right angle to form inclined flange m.

Cast upon the upper side of cone J, and extending from about the top ofsaid cone to the outer edge of inclined flange m, are a series of ribs,ot, as shown.

Cast upon sleeve or hub I, and at points above the upper edge of cone J,are a series of wings or arms, K, which, upon the revolution of shaft Gand sleeve I, serve as fans to force the reduced ore through spout Gr.The inclined iange m of cone J overlaps the vertical ange c of base Z.

The operation of the apparatus is as follows: Motion is imparted toshaft C through pulley E, any suitable power being applied thereto. Asthis shaft revolves it carries with it sleeve I and the cone and fanscast therewith. Ore in its unreduced state is then fed through spout Fand falls upon cone J, and is thrown by centrifugal force into the spaceformed by the base l of stationary easing A. This operation continuesuntil there is formed upon said base a solid wall of ore, as at L, Fig.l. The ore is continued to be fed through spout F, and the wall L havingbeen formed, said ore remains upon the revolving cone J, but, bycentrifugal force, is thrown against the solid wall of ore referred to,and is gradually reduced by the attrition ofthe two masses. The ore thusreduced to a powdered form is blown out by fans K through spout G. Theribs d and n, described as formed upon base b and cone J, respectively,serve to hold the two bodies of ore more iirinly in pluee and preventany sliding` ofthe sume. By this operation the ore upon revolving conc Jis more liable to be reduced thun that upon buse I); but us thelust-inlined body is gradually reduced it is renewed by ore from that oncone J, :L continuous solid wall ol' ore being thus kept on buse b.

In euse :my ore should eseupebeiiween flanges c und m, there muy bo anysuituble receptacle placed thereunder to eul'ch the suine, und, further,should the cirrmlution of air, caused by the revolution of funs K, beinsufficient to force the reduced ore through spout G, said spout muy belengthened und provided with un exhaust or suction fun.

Having thus described my invention, what I clniin as new therein, undthat for whieh I desire to seeure Letters Potent, is-

1. The combination, with stationary easing A, provided with aninlet-spout, F, und ribs d, of shaft C, and cone J, provided with ribsm, the parts constructed to bring1 two bodies of ore in Contact undreduce the sulncby attrition, as described and shown.

2. The stationary easing A, provided with inlet-spout F, outlet-spout G,and ribs d, in combination with revolving` eoue J, provided with ribs m,und the funs 1, us described and shown.

In testimony whereof I :tfllx my signature in presence ol' twowitnesses.

NELSON CLIIEN'I.

\Yitnesses: i

M'. J1 CLion'r'r, 1li. G. SMDUD.

